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    • 2. 发明公开
    • MULTI-AXIS ANGULAR RATE SENSOR HAVING A SINGLE DITHER AXIS
    • 具有单个轴的多轴角度传感器
    • EP0342230A4
    • 1991-05-15
    • EP89901220
    • 1988-10-25
    • SUNDSTRAND DATA CONTROL, INC.
    • HULSING, RAND, H., II
    • G01P15/11G01C19/5705G01C19/5776G01P15/08G01P15/14G01P9/04
    • G01C19/5705G01C19/5776
    • A Coriolis rate sensor for determining both angular rate and linear acceleration with respect to three orthogonal axes. A first embodiment of the rate sensor (10) includes three pairs of accelerometers (26, 28 and 30) mounted on counter-rotating frame members (20, 22). The accelerometers are mounted with their sensitive axes antiparallel with each other, forming an acute angle with the common axis (40) about which the upper and lower frame members are counter-rotated back and forth in a dither motion. The upper and lower frame members are connected to a baseplate (12) by flex links (32), which are aligned radially about the axis. The flex links provide a relatively rigid support (in compression) between the frame members and the centrally disposed baseplate, yet readily permit counter-rotation of the two frame members. A link (56) prevents all but relative rotational movement between the frame members and baseplate. A pair of electromagnetic coils (42) and pole pieces (50) provide a sinusoidal driving force to counter-rotate the upper and lower frame members relative to each other to ensure that the upper and lower frame members are directly coupled to each other and to the baseplate. In a second embodiment of the rate sensor (100), eight accelerometers (102, 104, 106 and 108) are mounted with two pairs on an upper counter-rotating member and two pairs on a lower counter-rotating member.
    • 3. 发明授权
    • VIBRATING-MASS GYROSCOPE SYSTEMS AND METHOD
    • SCHWUNGMASSE-GYROSKOPSYSTEM UND VERFAHREN
    • EP2977722B1
    • 2017-04-19
    • EP15177796.8
    • 2015-07-22
    • Northrop Grumman Systems Corporation
    • STEWART, Robert E.
    • G01C19/5705G01C19/5733
    • G01C19/5705G01C19/5733
    • One embodiment of the invention includes a vibrating-mass gyroscope system. A sensor system includes a substantially planar vibrating-mass including opposite first and second surfaces and electrodes that extend longitudinally in a periodic pattern across the first and/or second surfaces. The electrodes include sets of drive and sense electrodes that are capacitively coupled to respective matching sets of drive and sense electrodes associated with a housing and which are separated from and facing the respective first and second surfaces. A gyroscope controller generates a drive signal provided to one of the array of drive electrodes and the substantially matching array of drive electrodes to provide for in-plane periodic oscillatory motion of the vibrating-mass, and generates a force-rebalance signal that is provided to one of the array of sense electrodes and the substantially matching array of sense electrodes to calculate rotation of the vibrating-mass gyroscope system about an input axis.
    • 本发明的一个实施例包括振动质量陀螺仪系统。 传感器系统包括基本上平面的振动质量块,其包括相对的第一和第二表面以及以周期性图案纵向延伸穿过第一和/或第二表面的电极。 电极包括驱动电极和感测电极组,其电容耦合到与壳体相关联的驱动和感测电极的相应匹配组,并且与壳体分离并面向相应的第一和第二表面。 陀螺仪控制器产生提供给驱动电极阵列之一的驱动信号和驱动电极的基本上匹配的阵列,以提供振动块的面内周期性振荡运动,并产生力 - 重新平衡信号,其被提供给 感测电极阵列中的一个和感测电极的基本上匹配的阵列,以计算振动质量陀螺仪系统围绕输入轴的旋转。